An investigation on the effect of gusset plate connection rigidity on the seismic behavior of special concentrically braced frames

Special concentrically braced frames (SCBFs) are commonly used to resist lateral loads in buildings. The bracing system sustains large deformations due to inelastic behavior in bracing members (buckling and yielding in tension). Generally, in the conventional modeling strategy, the effect of gusset...

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Autores principales:	Ali Esnaashari, Amin Mohebkhah
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2016
Materias:	special concentrically braced frames (scbfs) seismic behavior gusset plate propose model nonlinearanalysis Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/cf74e75c67454f6ea048ef95703a0414
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spelling	oai:doaj.org-article:cf74e75c67454f6ea048ef95703a04142021-11-08T15:46:09ZAn investigation on the effect of gusset plate connection rigidity on the seismic behavior of special concentrically braced frames2476-39772538-261610.22065/jsce.2016.40261https://doaj.org/article/cf74e75c67454f6ea048ef95703a04142016-12-01T00:00:00Zhttps://www.jsce.ir/article_40261_80b9d63ed9553420a11a4925472df058.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616Special concentrically braced frames (SCBFs) are commonly used to resist lateral loads in buildings. The bracing system sustains large deformations due to inelastic behavior in bracing members (buckling and yielding in tension). Generally, in the conventional modeling strategy, the effect of gusset plates in providing beam-column connections rigidity and hence, improving the post-buckling performance of these frames is not taken into account. This paper deals with the effect of gusset plate rigidity on the seismic behavior of SCBFs using Roeder’s proposed model in the literature. In this paper, four 3, 6, 9 and 12-story SCBFs were designed and modeled using two distinct methods: conventional method with hinged connections and Roeder’s method with semi-rigid connections. Then, the models behavior was investigated with both pushover analysis and nonlinear time-history analysis using OpenSees software. The results showed that lateral load capacity of the frames modeled with the Roeder’s proposed model are about 10% larger than the conventional method’s capacity. Also, it was found that the semi-rigid model leads to a less drift ratios and more overstrength factors.Ali EsnaashariAmin MohebkhahIranian Society of Structrual Engineering (ISSE)articlespecial concentrically braced frames (scbfs)seismic behaviorgusset platepropose modelnonlinearanalysisBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 3, Iss 3, Pp 128-142 (2016)
institution	DOAJ
collection	DOAJ
language	FA
topic	special concentrically braced frames (scbfs) seismic behavior gusset plate propose model nonlinearanalysis Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	special concentrically braced frames (scbfs) seismic behavior gusset plate propose model nonlinearanalysis Bridge engineering TG1-470 Building construction TH1-9745 Ali Esnaashari Amin Mohebkhah An investigation on the effect of gusset plate connection rigidity on the seismic behavior of special concentrically braced frames
description	Special concentrically braced frames (SCBFs) are commonly used to resist lateral loads in buildings. The bracing system sustains large deformations due to inelastic behavior in bracing members (buckling and yielding in tension). Generally, in the conventional modeling strategy, the effect of gusset plates in providing beam-column connections rigidity and hence, improving the post-buckling performance of these frames is not taken into account. This paper deals with the effect of gusset plate rigidity on the seismic behavior of SCBFs using Roeder’s proposed model in the literature. In this paper, four 3, 6, 9 and 12-story SCBFs were designed and modeled using two distinct methods: conventional method with hinged connections and Roeder’s method with semi-rigid connections. Then, the models behavior was investigated with both pushover analysis and nonlinear time-history analysis using OpenSees software. The results showed that lateral load capacity of the frames modeled with the Roeder’s proposed model are about 10% larger than the conventional method’s capacity. Also, it was found that the semi-rigid model leads to a less drift ratios and more overstrength factors.
format	article
author	Ali Esnaashari Amin Mohebkhah
author_facet	Ali Esnaashari Amin Mohebkhah
author_sort	Ali Esnaashari
title	An investigation on the effect of gusset plate connection rigidity on the seismic behavior of special concentrically braced frames
title_short	An investigation on the effect of gusset plate connection rigidity on the seismic behavior of special concentrically braced frames
title_full	An investigation on the effect of gusset plate connection rigidity on the seismic behavior of special concentrically braced frames
title_fullStr	An investigation on the effect of gusset plate connection rigidity on the seismic behavior of special concentrically braced frames
title_full_unstemmed	An investigation on the effect of gusset plate connection rigidity on the seismic behavior of special concentrically braced frames
title_sort	investigation on the effect of gusset plate connection rigidity on the seismic behavior of special concentrically braced frames
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2016
url	https://doaj.org/article/cf74e75c67454f6ea048ef95703a0414
work_keys_str_mv	AT aliesnaashari aninvestigationontheeffectofgussetplateconnectionrigidityontheseismicbehaviorofspecialconcentricallybracedframes AT aminmohebkhah aninvestigationontheeffectofgussetplateconnectionrigidityontheseismicbehaviorofspecialconcentricallybracedframes AT aliesnaashari investigationontheeffectofgussetplateconnectionrigidityontheseismicbehaviorofspecialconcentricallybracedframes AT aminmohebkhah investigationontheeffectofgussetplateconnectionrigidityontheseismicbehaviorofspecialconcentricallybracedframes
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An investigation on the effect of gusset plate connection rigidity on the seismic behavior of special concentrically braced frames

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